Paintball Tank Adapter for for Hammerli 850 / RWS 850 9 oz.

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Stop buying CO2 cartridges for your 850

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Makes it possible to attach a refillable paintball tank to a Hammerli 850 air rifle instead of having to buy new CO2 cartridges. Attach a 9 oz. paintball tank with pin valve to your 850. The internal floating pin depresses and opens the pin valve as the paintball tank is fully installed in the 850 rifle.



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Have questions or feedback?

6 months 21 days ago

I just purchased this fitting and was wondering do I put it on the tank and then screw into gun or put adapter in gun then screw in PB tank? Also do I need the brass adapter as well you sell. Thanks in advance.

6 months 19 days ago

It is easier if you screw it into the gun first and then screw on the tank. You should not need a brass adapter as long as this is going on a Hammerli 850.

Jeff R.
2 years 7 months ago

does this also work for HPA? I believe that’s a different tank.

2 years 7 months ago


Anders Grassman
3 months 27 days ago

I need clarification, as I wonder the same thing. Does it work for HPA as well, does one use other tanks and fittings? (I want to be able to – without to much trouble – be able to switch in between CO2 and HPA on a 850 rifle.)

3 months 27 days ago

It is for CO2 only.